@grafana/e2e: screenshots and panel flow (#25203)

* Cleanup

* addPanel now supports (optional) custom dashboardUid

* addPanel now supports (optional) visualization name

* Added CLI option for updating screenshot fixtures

* Added support for console.* functions within tests

* Refactored screenshot command for greater simplicity

* addPanel now sets a unique title

* Updated lockfile

packages/grafana-e2e/cypress/plugins/extendConfig.js

@@ -4,10 +4,11 @@ const {
 } = require('fs');
 const { resolve } = require('path');
 
+// @todo use https://github.com/bahmutov/cypress-extends when possible
 module.exports = async baseConfig => {
   // From CLI
   const {
-    env: { CWD },
+    env: { CWD, UPDATE_SCREENSHOTS },
   } = baseConfig;
 
   if (CWD) {
@@ -21,7 +22,7 @@ module.exports = async baseConfig => {
       reporterOptions: {
         output: `${CWD}/cypress/report.json`,
       },
-      screenshotsFolder: `${CWD}/cypress/screenshots`,
+      screenshotsFolder: `${CWD}/cypress/screenshots/${UPDATE_SCREENSHOTS ? 'expected' : 'actual'}`,
       videosFolder: `${CWD}/cypress/videos`,
     };